Answer:
12.5
Explanation:
1) Original equation: 3(2) - 18x +225 = 6
2) Simplify: 6 - 18x + 225 = 6
3) Move 18x over to the right: 6 + 225 = 6 + 18x
4) Move the 6 on the right over to the left: 225 = 18x
5) Divide both sides by 18 to isolate x: 225/18, 18x/18
6) x = 12.5